<nav class="navbar navbar-default">
  <div class="container">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <a class="navbar-brand" href="<?=site_url()?>"><img style="height:180%;" src="<?=base_url();?>public/img/logo.png"></a>
    </div>
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav navbar-right">
      <?php
        foreach ($navs as $value) {
      ?>
        <li class=""><a href="<?=$value->addr?>"><?=$value->option?></a></li>
      <?php
        }
      ?>
      </ul>
    </div>
  </div>
  <div class="bg">
      <div class="text-center">
        <h1 class="text-center"><?=$article->title?></h1>
      </div>
  </div>
</nav>
<hr />
<div class="container">
  <p><?=$article->content?></p>
</div>